No.1 (1/8" – 1/4"，M3~M6)
No.2 (1/4" – 5/16"，M6~M8)
No.3 (5/16" – 7/16"，M8~M10)
No.4 (7/16" – 9/16"，M10~M14)
No.5 (9/16" – 3/4"，M14~M18)
FEATURES:
► Special design made for releasing broken screw
without drilling a hole
► Used with impact driver easy to release broken screw